Summer Software Engineering Intern

Our field services team covers retail chains, hospitals and banks, dispatching technicians to over 4,000 sites. Corwin is a managed services provider with 350 employees, supporting more than 1,500 client organisations across Finland. Lunch is usually whatever is closest to the client site.

The internship

We need a student who can write clean code, test it and explain what it does. Prior internships are not required. You can work from home anywhere in Finland. We have no office requirement. Flexible hours with a daily team call in the morning. Please make sure you have a quiet place to work and a solid internet connection.

Responsibilities

• Join the daily 15-minute standup on Google Meet and post a short written update in Slack
• Pair with other engineers over screen share to work through tricky problems
• Present a short demo of your work to the team every two weeks
• Profile slow endpoints and suggest fixes, such as adding an index or caching a result
• Write and test backend features in Python or Node.js under the guidance of a senior developer
• Add unit tests with pytest or Jest so new code does not lower coverage
• Build REST API endpoints and document them in Postman or Swagger

What we're looking for

• Eligible to work in Finland
• Based in Finland for the duration of the internship
• Available for the full internship period
• Some experience with Git, even if only on college or personal projects
• Comfortable writing simple SQL queries (SELECT, JOIN, GROUP BY)
• Own laptop with at least 8 GB RAM and a reliable internet connection
• Basic understanding of data structures, OOP and how HTTP requests work
• A GitHub profile with at least two projects you wrote yourself
• Able to communicate clearly in written English on Slack and in pull requests

Duration: 5 months

Start date: Jan 2027

Stipend: €1,750 - €2,050 monthly

Perks

• Online learning budget
• Flexible hours
• Paid public holidays
• Certificate of completion

We will only contact shortlisted applicants.

Duration: 5 months. Start: Jan 2027.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Corwin Oy.